/* roulang page: index */
:root{
  --ink:#0c1d22;
  --ink-2:#15323a;
  --paper:#f4f8f6;
  --surface:#ffffff;
  --muted:#5d777d;
  --line:#dde8e5;
  --brand:#126f63;
  --brand-deep:#0a4c44;
  --brand-soft:#e1f2ee;
  --copper:#c98b4b;
  --radius:14px;
  --shadow-sm:0 2px 10px rgba(12,29,34,.06);
  --shadow-md:0 14px 32px rgba(12,29,34,.11);
  --shadow-lg:0 26px 58px rgba(12,29,34,.18);
}
*,*::before,*::after{box-sizing:border-box;}
.site-body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button{font-family:inherit;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{margin:0;font-weight:800;letter-spacing:-.01em;}
.site-body p{margin:0;}
.site-body ul,.site-body ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;border-radius:8px;z-index:99;}
.skip-link:focus{left:12px;top:12px;outline:3px solid var(--brand);}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(12,29,34,.09);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:64px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(150deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;box-shadow:0 6px 14px rgba(18,111,99,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:15.5px;font-weight:800;color:var(--ink);}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em;font-weight:500;}
.site-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{padding:8px 13px;border-radius:8px;font-size:14.5px;font-weight:500;color:#3a5359;transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;}
.nav-link:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:2px;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;margin-left:auto;color:var(--ink);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:11px 20px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;min-height:42px;white-space:nowrap;}
.btn:focus-visible{outline:3px solid rgba(18,111,99,.4);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(18,111,99,.24);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(18,111,99,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#cfe2dd;}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-sm{padding:8px 15px;font-size:13.5px;min-height:38px;}
.btn-block{width:100%;}

/* ===== Hero ===== */
.hero{position:relative;color:#fff;background-color:#0a1c20;background-size:cover;background-position:center;padding:70px 0 76px;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,25,29,.95) 0%,rgba(9,32,36,.88) 46%,rgba(9,32,36,.6) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:46px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:#a6ded2;background:rgba(255,255,255,.08);border:1px solid rgba(166,222,210,.34);padding:6px 14px;border-radius:999px;}
.hero h1{font-size:clamp(27px,3.3vw,43px);line-height:1.26;margin:18px 0 18px;color:#fff;}
.hero-lead{font-size:15.5px;line-height:1.88;color:#cfe3df;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 20px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
.tag{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dcf0eb;}
.invite-panel{background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.17);border-radius:16px;padding:26px 24px;box-shadow:0 26px 54px rgba(0,0,0,.3);}
.invite-panel h2{font-size:17px;color:#fff;margin-bottom:6px;}
.invite-panel .panel-note{font-size:13px;color:#a9c8c3;line-height:1.7;}
.progress-track{height:10px;border-radius:999px;background:rgba(255,255,255,.16);overflow:hidden;margin:16px 0 10px;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#3fc3ac,#e2b070);transition:width .6s ease;}
.progress-meta{font-size:13px;color:#cfe3df;}
.progress-meta strong{color:#fff;font-size:15px;}
.reward-list{margin-top:18px;display:flex;flex-direction:column;gap:11px;}
.reward-list li{display:flex;gap:10px;font-size:13.5px;line-height:1.65;color:#d7e9e5;}
.reward-list li i{flex:0 0 20px;height:20px;border-radius:50%;background:rgba(63,195,172,.22);color:#7fe0cd;display:grid;place-items:center;font-style:normal;font-size:11.5px;font-weight:700;margin-top:2px;}

/* ===== Sections ===== */
.section{padding:64px 0;}
.section-white{background:#fff;}
.section-tint{background:#edf4f1;}
.section-dark{background:var(--ink);color:#e6f0ee;}
.section-head{max-width:780px;margin-bottom:34px;}
.section-kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand);background:var(--brand-soft);padding:4px 11px;border-radius:6px;margin-bottom:12px;}
.section-dark .section-kicker{color:#8ee0cf;background:rgba(142,224,207,.14);}
.section-head h2{font-size:clamp(21px,2.4vw,30px);line-height:1.36;margin-bottom:12px;color:var(--ink);}
.section-dark .section-head h2{color:#fff;}
.section-head p{font-size:15px;line-height:1.85;color:var(--muted);}
.section-dark .section-head p{color:#b9cfca;}

/* ===== Stat strip ===== */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);}
.stat-cell{background:#fff;padding:24px 22px;}
.stat-cell strong{display:block;font-size:30px;line-height:1.1;color:var(--brand-deep);font-weight:800;}
.stat-cell span{display:block;font-size:13.5px;font-weight:700;color:var(--ink-2);margin-top:8px;}
.stat-cell p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:6px;}

/* ===== Grids ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}

/* ===== Cards ===== */
.card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9d6d0;}
.card-media{aspect-ratio:16/9;overflow:hidden;background:#dcebe7;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.05);}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:16.5px;line-height:1.5;color:var(--ink);}
.card-body p{font-size:14px;line-height:1.78;color:var(--muted);}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--brand);margin-top:auto;}
.card:hover .card-link{color:var(--brand-deep);}
.chip{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-deep);background:var(--brand-soft);border-radius:999px;padding:3px 10px;}
.meta-row{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#7d949a;flex-wrap:wrap;}

/* ===== Invite reward ===== */
.reward-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.reward-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;position:relative;}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9d6d0;}
.reward-card.featured{border-color:#9ecfc5;background:linear-gradient(180deg,#f3fbf8,#fff);}
.reward-card .rc-step{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--copper);}
.reward-card h3{font-size:17px;margin:8px 0 8px;color:var(--ink);}
.reward-card p{font-size:13.5px;color:var(--muted);line-height:1.75;}
.reward-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.reward-card li{font-size:13.5px;color:#3f595f;padding-left:16px;position:relative;line-height:1.65;}
.reward-card li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;background:var(--brand);}
.invite-bottom{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:22px;margin-top:24px;}
.panel-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);}
.panel-box h3{font-size:16px;margin-bottom:10px;color:var(--ink);}
.panel-box p{font-size:13.8px;color:var(--muted);line-height:1.8;}
.share-line{margin:14px 0 16px;padding:12px 14px;border-radius:10px;background:var(--paper);border:1px dashed #bcxd;border:1px dashed #bcd9d3;font-size:13.5px;color:#33535a;line-height:1.7;}
.rank-list{display:flex;flex-direction:column;gap:12px;margin-top:14px;}
.rank-list li{display:flex;align-items:center;gap:12px;font-size:13.8px;color:#33535a;}
.rank-no{width:24px;height:24px;border-radius:8px;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-size:12.5px;font-weight:800;flex:0 0 24px;}
.rank-list li span.grow{flex:1;}
.rank-list li b{color:var(--brand-deep);font-weight:700;}

/* ===== News (CMS) ===== */
.news-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);gap:26px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{display:flex;gap:18px;justify-content:space-between;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#b9d6d0;}
.news-item-main h3{font-size:15.8px;line-height:1.55;color:var(--ink);margin-bottom:6px;}
.news-item-main p{font-size:13.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex:0 0 auto;font-size:12.5px;color:#7d949a;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);}
.side-card h3{font-size:15.5px;margin-bottom:14px;color:var(--ink);}
.side-card ul{display:flex;flex-direction:column;gap:13px;}
.side-card li{font-size:13.5px;line-height:1.7;color:#3f595f;padding-bottom:13px;border-bottom:1px dashed var(--line);}
.side-card li:last-child{border-bottom:0;padding-bottom:0;}
.side-card li b{display:block;color:var(--ink);font-size:14px;margin-bottom:3px;}
.empty-note{font-size:14px;color:var(--muted);background:#fff;border:1px dashed #c3d9d4;border-radius:12px;padding:22px;text-align:center;}

/* ===== Topic cloud ===== */
.topic-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px;}
.topic-cloud span{font-size:13.5px;padding:7px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#33535a;transition:background .2s ease,border-color .2s ease,transform .2s ease;}
.topic-cloud span:hover{background:var(--brand-soft);border-color:#a9d3ca;transform:translateY(-2px);}
.topic-split{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:28px;align-items:start;}
.topic-split .panel-box p + p{margin-top:10px;}

/* ===== Flow ===== */
.flow-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.flow-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);border-radius:var(--radius);padding:22px 20px;transition:background .2s ease,transform .2s ease;}
.flow-item:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);}
.flow-num{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.1em;color:#7fe0cd;margin-bottom:10px;}
.flow-item h3{font-size:16px;color:#fff;margin-bottom:8px;}
.flow-item p{font-size:13.5px;line-height:1.75;color:#b9cfca;}

/* ===== Timeline ===== */
.timeline{display:flex;flex-direction:column;gap:0;border-left:2px solid #cfe2dd;margin-left:8px;}
.timeline li{position:relative;padding:0 0 26px 26px;}
.timeline li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--brand);}
.timeline li:last-child{padding-bottom:0;}
.timeline time{font-size:12.5px;font-weight:700;color:var(--brand);letter-spacing:.04em;}
.timeline h3{font-size:16px;margin:6px 0 6px;color:var(--ink);}
.timeline p{font-size:13.8px;color:var(--muted);line-height:1.78;}

/* ===== Platform ===== */
.platform-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.platform-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;}
.platform-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.platform-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;margin-bottom:14px;}
.platform-icon svg{width:22px;height:22px;}
.platform-card h3{font-size:16.5px;margin-bottom:8px;color:var(--ink);}
.platform-card p{font-size:13.8px;color:var(--muted);line-height:1.78;}

/* ===== Audience ===== */
.audience-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.audience-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-sm);}
.audience-card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:9px;color:var(--ink);}
.dot{width:10px;height:10px;border-radius:50%;background:var(--brand);display:inline-block;}
.dot.warn{background:var(--copper);}
.audience-card ul{display:flex;flex-direction:column;gap:11px;}
.audience-card li{font-size:14px;line-height:1.75;color:#3f595f;padding-left:16px;position:relative;}
.audience-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:#b7cec9;}

/* ===== Compare table ===== */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm);}
table.compare{width:100%;border-collapse:collapse;min-width:620px;}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);}
table.compare thead th{background:#f6faf9;font-size:13.5px;color:var(--ink);font-weight:800;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{color:#33535a;font-weight:600;}
table.compare td.hl{background:#f2fbf8;color:var(--brand-deep);font-weight:700;}
table.compare tbody tr:hover td{background:#f8fcfb;}
table.compare tbody tr:hover td.hl{background:#e9f7f3;}

/* ===== Risk banner ===== */
.risk-banner{background:#fff8ef;border:1px solid #ecd3b3;border-radius:var(--radius);padding:22px 24px;display:flex;gap:16px;align-items:flex-start;}
.risk-banner .risk-icon{flex:0 0 38px;height:38px;border-radius:11px;background:#f7e3c9;color:#8f5f22;display:grid;place-items:center;}
.risk-banner h3{font-size:15.5px;color:#6d4a1c;margin-bottom:6px;}
.risk-banner p{font-size:13.8px;line-height:1.78;color:#7d5c31;}

/* ===== Testimonials ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.quote-card p{font-size:14px;line-height:1.8;color:#33535a;}
.quote-user{display:flex;align-items:center;gap:10px;margin-top:16px;}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-weight:800;font-size:14px;}
.quote-user b{font-size:13.5px;color:var(--ink);display:block;}
.quote-user small{font-size:12px;color:var(--muted);}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item:hover{border-color:#b9d6d0;box-shadow:var(--shadow-md);}
.faq-item h3{font-size:15.5px;color:var(--ink);margin-bottom:8px;display:flex;gap:10px;align-items:flex-start;}
.faq-item h3 span{flex:0 0 22px;height:22px;border-radius:7px;background:var(--brand-soft);color:var(--brand-deep);font-size:12px;font-weight:800;display:grid;place-items:center;margin-top:2px;}
.faq-item p{font-size:14px;line-height:1.82;color:var(--muted);padding-left:32px;}

/* ===== Footer ===== */
.site-footer{background:#0a1c20;color:#c2d6d1;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand b{color:#fff;font-size:16px;font-weight:800;}
.footer-about{font-size:13.5px;line-height:1.82;color:#9db8b3;max-width:380px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:#a9c3be;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-col a:focus-visible{outline:2px solid #7fe0cd;outline-offset:3px;border-radius:4px;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:22px;flex-wrap:wrap;font-size:12.5px;color:#8aa6a1;}
.footer-bottom span{color:#7b9995;}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .grid-3,.grid-4,.stat-strip,.reward-grid,.platform-grid,.quote-grid,.flow-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout,.topic-split,.invite-bottom{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .site-nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:2px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);padding:10px 18px 16px;margin-left:0;}
  .site-nav.is-open{display:flex;}
  .nav-link{padding:11px 12px;font-size:15px;}
  .nav-actions{display:flex;gap:10px;margin:10px 0 0;}
  .nav-actions .btn{flex:1;min-height:42px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .hero{padding:52px 0 56px;}
  .grid-2,.grid-3,.grid-4,.stat-strip,.reward-grid,.platform-grid,.quote-grid,.flow-list,.audience-grid{grid-template-columns:1fr;}
  .stat-cell{padding:20px;}
  .news-item{flex-direction:column;gap:10px;}
  .news-item-meta{flex-direction:row;align-items:center;}
  .faq-item p{padding-left:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-about{max-width:none;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero h1{font-size:26px;}
  .hero-lead{font-size:14.5px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .brand-text b{font-size:14px;}
  .brand-text small{display:none;}
  .invite-panel{padding:20px 18px;}
  .stat-cell strong{font-size:26px;}
  .section-head h2{font-size:21px;}
}

/* roulang page: article */
:root{
 --ink:#0c1d22;
 --ink-2:#15323a;
 --paper:#f4f8f6;
 --surface:#ffffff;
 --muted:#5d777d;
 --line:#dde8e5;
 --brand:#126f63;
 --brand-deep:#0a4c44;
 --brand-soft:#e1f2ee;
 --copper:#c98b4b;
 --radius:14px;
 --shadow-sm:0 2px 10px rgba(12,29,34,.06);
 --shadow-md:0 14px 32px rgba(12,29,34,.11);
 --shadow-lg:0 26px 58px rgba(12,29,34,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.site-body{
 margin:0;
 background:var(--paper);
 color:var(--ink);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button{font-family:inherit;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{margin:0;font-weight:800;letter-spacing:-.01em;}
.site-body p{margin:0;}
.site-body ul,.site-body ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(12,29,34,.09);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:64px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(150deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;box-shadow:0 6px 14px rgba(18,111,99,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:15.5px;font-weight:800;color:var(--ink);}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em;font-weight:500;}
.site-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{padding:8px 13px;border-radius:8px;font-size:14.5px;font-weight:500;color:#3a5359;transition:background .2s ease,color .2s ease;white-space:nowrap;}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;}
.nav-link:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:2px;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;margin-left:auto;color:var(--ink);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}
/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:11px 20px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;min-height:42px;white-space:nowrap;}
.btn:focus-visible{outline:3px solid rgba(18,111,99,.4);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(18,111,99,.24);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(18,111,99,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#cfe2dd;}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-sm{padding:8px 15px;font-size:13.5px;min-height:38px;}
.btn-block{width:100%;}
/* ===== Article hero ===== */
.article-hero{position:relative;color:#fff;background-color:#0a1c20;background-size:cover;background-position:center;padding:46px 0 58px;overflow:hidden;}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(8,25,29,.96) 0%,rgba(9,32,36,.87) 52%,rgba(9,32,36,.62) 100%);}
.article-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:#9fc4bc;}
.crumbs a{color:#a6ded2;transition:color .2s ease;}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.crumbs span.sep{opacity:.55;}
.crumb-current{color:#d5e9e4;}
.hero-meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin:22px 0 14px;font-size:13px;color:#bcd8d1;}
.badge-soft{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:#8ee0cf;background:rgba(142,224,207,.14);border:1px solid rgba(142,224,207,.32);padding:4px 12px;border-radius:999px;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.42);}
.article-title{font-size:clamp(25px,3.1vw,39px);line-height:1.28;color:#fff;margin:0 0 16px;max-width:900px;}
.article-sub{font-size:15.5px;line-height:1.85;color:#cfe3df;max-width:760px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px;}
.tag{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dcf0eb;}
/* ===== Layout helpers ===== */
.section{padding:64px 0;}
.section-white{background:#fff;}
.section-tint{background:#edf4f1;}
.section-dark{background:var(--ink);color:#e6f0ee;}
.section-head{max-width:800px;margin-bottom:34px;}
.section-kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand);background:var(--brand-soft);padding:4px 11px;border-radius:6px;margin-bottom:12px;}
.section-dark .section-kicker{color:#8ee0cf;background:rgba(142,224,207,.14);}
.section-head h2{font-size:clamp(21px,2.4vw,30px);line-height:1.36;margin-bottom:12px;color:var(--ink);}
.section-dark .section-head h2{color:#fff;}
.section-head p{font-size:15px;line-height:1.85;color:var(--muted);}
.section-dark .section-head p{color:#b9cfca;}
/* ===== Article body ===== */
.article-main{padding:52px 0 64px;background:#fff;}
.article-wrap{max-width:900px;margin:0 auto;}
.article-cover{margin:0 0 30px;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line);}
.article-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;}
.article-content h2{font-size:22px;line-height:1.45;margin:32px 0 14px;padding-left:13px;border-left:4px solid var(--brand);color:var(--ink);}
.article-content h2:first-child{margin-top:0;}
.article-content h3{font-size:18px;line-height:1.5;margin:24px 0 11px;color:var(--ink-2);}
.article-content h4{font-size:16px;margin:20px 0 9px;color:var(--ink-2);}
.article-content p{font-size:15.5px;line-height:1.9;color:#2c454b;margin:0 0 16px;}
.article-content ul{margin:0 0 18px;padding:0;list-style:none;}
.article-content ul li{position:relative;padding-left:20px;margin-bottom:9px;font-size:15px;line-height:1.85;color:#2c454b;}
.article-content ul li::before{content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.article-content ol{margin:0 0 18px;padding:0;list-style:none;counter-reset:artc;}
.article-content ol li{position:relative;padding-left:28px;margin-bottom:10px;font-size:15px;line-height:1.85;color:#2c454b;counter-increment:artc;}
.article-content ol li::before{content:counter(artc);position:absolute;left:0;top:3px;width:19px;height:19px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);font-size:11px;font-weight:700;display:grid;place-items:center;}
.article-content table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:14.5px;}
.article-content th{background:var(--brand-soft);color:var(--brand-deep);text-align:left;padding:10px 14px;border:1px solid var(--line);font-weight:700;}
.article-content td{padding:10px 14px;border:1px solid var(--line);color:#2c454b;}
.article-content img{border-radius:12px;margin:8px 0 20px;height:auto;}
.article-content blockquote{margin:0 0 20px;padding:14px 18px;background:#f2f8f6;border-left:4px solid var(--copper);border-radius:0 10px 10px 0;color:#41606a;font-size:14.5px;line-height:1.85;}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--brand-deep);}
.article-content strong{color:var(--brand-deep);font-weight:700;}
.article-foot{margin-top:34px;padding-top:22px;border-top:1px dashed var(--line);display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.chip{font-size:12.5px;padding:5px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);border:1px solid #cbe6e0;font-weight:600;}
.article-empty{text-align:center;padding:56px 24px;background:#f7fbfa;border:1px dashed #c8ded8;border-radius:16px;}
.empty-mark{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;background:linear-gradient(150deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-size:24px;font-weight:800;box-shadow:0 10px 22px rgba(18,111,99,.24);}
.article-empty h2{font-size:21px;margin-bottom:10px;color:var(--ink);}
.article-empty p{font-size:15px;line-height:1.85;color:var(--muted);max-width:520px;margin:0 auto 22px;}
/* ===== Grids & cards ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bcd8d1;}
.card h3{font-size:17px;line-height:1.5;margin-bottom:10px;color:var(--ink);}
.card p{font-size:14.5px;line-height:1.85;color:var(--muted);}
.card-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-size:15px;font-weight:800;margin-bottom:16px;}
.card-num{width:34px;height:34px;border-radius:10px;background:var(--ink);color:#8ee0cf;display:grid;place-items:center;font-size:14px;font-weight:800;margin-bottom:14px;}
.card-line{height:1px;background:var(--line);margin:16px 0;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.card-tag{font-size:12px;padding:3px 10px;border-radius:999px;background:#f1f7f5;color:#4f7370;border:1px solid #e2efeb;}
/* ===== Steps ===== */
.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bcd8d1;}
.step-idx{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--copper);margin-bottom:10px;display:block;}
.step-card h3{font-size:16.5px;margin-bottom:9px;color:var(--ink);}
.step-card p{font-size:14px;line-height:1.85;color:var(--muted);}
/* ===== Spec table ===== */
.table-wrap{overflow-x:auto;border-radius:14px;box-shadow:var(--shadow-sm);}
.spec-table{width:100%;min-width:600px;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:14.5px;}
.spec-table th{background:var(--brand-soft);color:var(--brand-deep);text-align:left;padding:14px 18px;font-weight:700;font-size:13.5px;letter-spacing:.02em;white-space:nowrap;}
.spec-table td{padding:14px 18px;border-top:1px solid var(--line);color:#2c454b;line-height:1.75;}
.spec-table tbody tr:hover td{background:#f7fbfa;}
.spec-table td strong{color:var(--brand-deep);}
/* ===== Channel / topic cards ===== */
.channel-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9d8d1;}
.channel-card .ch-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.channel-card h3{font-size:17px;color:var(--ink);}
.channel-card .ch-index{font-size:12px;font-weight:800;color:var(--copper);letter-spacing:.1em;}
.channel-card p{font-size:14.2px;line-height:1.85;color:var(--muted);}
.channel-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand);}
.topic-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.topic-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd8d1;}
.topic-thumb{flex:0 0 84px;width:84px;height:64px;border-radius:10px;overflow:hidden;background:#e8f1ee;}
.topic-thumb img{width:100%;height:100%;object-fit:cover;}
.topic-item h3{font-size:15.5px;margin-bottom:6px;color:var(--ink);}
.topic-item p{font-size:13.5px;line-height:1.8;color:var(--muted);}
/* ===== FAQ ===== */
.faq-list{max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item[open]{border-color:#b9d8d1;box-shadow:var(--shadow-md);}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 20px;font-weight:700;font-size:15.5px;display:flex;justify-content:space-between;gap:16px;align-items:center;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;color:var(--brand);line-height:1;transition:transform .2s ease;flex:0 0 auto;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:2px;border-radius:12px;}
.faq-item p{padding:0 20px 18px;font-size:14.5px;line-height:1.88;color:var(--muted);}
/* ===== CTA ===== */
.cta-band{position:relative;background-color:#0a1c20;background-size:cover;background-position:center;border-radius:18px;overflow:hidden;padding:44px 40px;color:#fff;}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,25,29,.95) 0%,rgba(10,44,40,.88) 60%,rgba(10,44,40,.72) 100%);}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(20px,2.3vw,28px);line-height:1.4;margin-bottom:12px;color:#fff;}
.cta-band p{font-size:15px;line-height:1.85;color:#c9e2dc;max-width:660px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
/* ===== Footer ===== */
.site-footer{background:var(--ink);color:#b9cfca;padding:56px 0 26px;border-top:4px solid var(--brand);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{font-size:16px;color:#fff;font-weight:800;}
.footer-about{font-size:13.8px;line-height:1.9;color:#9dbab5;max-width:420px;}
.footer-col h3{font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.8px;color:#9dbab5;transition:color .2s ease;}
.footer-col a:hover{color:#8ee0cf;}
.footer-col a:focus-visible{outline:2px solid rgba(142,224,207,.6);outline-offset:3px;border-radius:4px;}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:22px;font-size:12.8px;color:#7e9a95;}
.footer-bottom span{line-height:1.7;}
/* ===== Responsive ===== */
@media (max-width:1024px){
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .hero-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
 .footer-grid > div:first-child{grid-column:1/-1;}
}
@media (max-width:980px){
 .nav-toggle{display:flex;}
 .site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-md);flex-direction:column;align-items:stretch;gap:4px;padding:14px;margin-top:8px;display:none;z-index:80;}
 .site-nav.is-open{display:flex;}
 .nav-link{padding:11px 12px;font-size:15px;}
 .nav-actions{flex-direction:column;align-items:stretch;margin:10px 0 0;gap:10px;}
 .nav-actions .btn{width:100%;}
}
@media (max-width:768px){
 .container{padding:0 18px;}
 .section{padding:46px 0;}
 .article-hero{padding:34px 0 42px;}
 .article-main{padding:38px 0 46px;}
 .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;gap:18px;}
 .cta-band{padding:32px 22px;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .footer-bottom{flex-direction:column;}
 .article-content h2{font-size:20px;}
 .article-content table{font-size:13.5px;}
}
@media (max-width:520px){
 .brand-text small{display:none;}
 .brand-text b{font-size:14.5px;}
 .article-title{font-size:23px;}
 .article-sub{font-size:14.5px;}
 .btn{width:100%;}
 .hero-tags{gap:7px;}
 .topic-item{flex-direction:column;}
 .topic-thumb{width:100%;height:120px;flex:none;}
}

/* roulang page: category1 */
:root{
 --ink:#0c1d22;
 --ink-2:#15323a;
 --paper:#f4f8f6;
 --surface:#ffffff;
 --muted:#5d777d;
 --line:#dde8e5;
 --brand:#126f63;
 --brand-deep:#0a4c44;
 --brand-soft:#e1f2ee;
 --copper:#c98b4b;
 --radius:14px;
 --shadow-sm:0 2px 10px rgba(12,29,34,.06);
 --shadow-md:0 14px 32px rgba(12,29,34,.11);
 --shadow-lg:0 26px 58px rgba(12,29,34,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body.site-body{
 margin:0;
 background:var(--paper);
 color:var(--ink);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button{font-family:inherit;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{margin:0;font-weight:800;letter-spacing:-.01em;}
.site-body p{margin:0;}
.site-body ul,.site-body ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(12,29,34,.09);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:64px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(150deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;box-shadow:0 6px 14px rgba(18,111,99,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:15.5px;font-weight:800;color:var(--ink);}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em;font-weight:500;}
.site-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{padding:8px 13px;border-radius:8px;font-size:14.5px;font-weight:500;color:#3a5359;transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;}
.nav-link:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:2px;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;margin-left:auto;color:var(--ink);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:11px 20px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;min-height:42px;white-space:nowrap;}
.btn:focus-visible{outline:3px solid rgba(18,111,99,.4);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(18,111,99,.24);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(18,111,99,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#cfe2dd;}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-sm{padding:8px 15px;font-size:13.5px;min-height:38px;}
.btn-block{width:100%;}

/* ===== Hero (category) ===== */
.hero{position:relative;color:#fff;background-color:#0a1c20;background-size:cover;background-position:center;padding:64px 0 68px;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,25,29,.96) 0%,rgba(9,32,36,.9) 48%,rgba(9,32,36,.62) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:44px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:#a6ded2;background:rgba(255,255,255,.08);border:1px solid rgba(166,222,210,.34);padding:6px 14px;border-radius:999px;}
.hero h1{font-size:clamp(27px,3.2vw,42px);line-height:1.28;margin:18px 0 18px;color:#fff;}
.hero-lead{font-size:15.5px;line-height:1.88;color:#cfe3df;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 20px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
.tag{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dcf0eb;}
.hero-panel{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:14px;backdrop-filter:blur(6px);box-shadow:var(--shadow-lg);}
.hero-panel img{border-radius:12px;width:100%;height:190px;object-fit:cover;}
.hero-panel-body{padding:14px 6px 4px;}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:13.5px;color:#c6dcd7;}
.panel-row:last-child{border-bottom:0;}
.panel-row b{color:#fff;font-size:15px;font-weight:800;}
.panel-bar{margin-top:14px;height:8px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;}
.panel-bar i{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,#3fc3ac,#8ee0cf);}
.panel-note{margin-top:9px;font-size:12.5px;color:#a9c6c1;}

/* ===== Sections ===== */
.section{padding:64px 0;}
.section-white{background:#fff;}
.section-tint{background:#edf4f1;}
.section-dark{background:var(--ink);color:#e6f0ee;}
.section-head{max-width:790px;margin-bottom:34px;}
.section-kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand);background:var(--brand-soft);padding:4px 11px;border-radius:6px;margin-bottom:12px;}
.section-dark .section-kicker{color:#8ee0cf;background:rgba(142,224,207,.14);}
.section-head h2{font-size:clamp(21px,2.4vw,30px);line-height:1.36;margin-bottom:12px;color:var(--ink);}
.section-dark .section-head h2{color:#fff;}
.section-head p{font-size:15px;line-height:1.85;color:var(--muted);}
.section-dark .section-head p{color:#b9cfca;}

/* ===== Grids ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}

/* ===== Stat strip ===== */
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfdcd4;}
.stat-card b{display:block;font-size:29px;line-height:1.2;color:var(--brand-deep);font-weight:800;letter-spacing:-.02em;}
.stat-card span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.6;}

/* ===== Card ===== */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;height:100%;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfdcd4;}
.card-num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--brand-soft);color:var(--brand-deep);font-size:14px;font-weight:800;margin-bottom:14px;}
.card h3{font-size:18px;line-height:1.4;margin-bottom:10px;color:var(--ink);}
.card p{font-size:14.5px;line-height:1.8;color:var(--muted);}
.card-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px;}
.chip{font-size:12px;padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);border:1px solid #cfe6e0;font-weight:600;}
.section-dark .card{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.14);box-shadow:none;}
.section-dark .card h3{color:#fff;}
.section-dark .card p{color:#b9cfca;}
.section-dark .card:hover{background:rgba(255,255,255,.09);border-color:rgba(142,224,207,.4);}

/* ===== Flow ===== */
.flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;counter-reset:flow;}
.flow-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;position:relative;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfdcd4;}
.flow-item .flow-step{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--copper);margin-bottom:10px;}
.flow-item h3{font-size:15.5px;line-height:1.5;margin-bottom:8px;}
.flow-item p{font-size:13.5px;line-height:1.75;color:var(--muted);}

/* ===== Param list ===== */
.param-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);}
.param-row{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,2fr) minmax(0,.8fr);gap:18px;padding:18px 22px;border-bottom:1px solid var(--line);align-items:center;transition:background .2s ease;}
.param-row:last-child{border-bottom:0;}
.param-row:hover{background:#f7fbfa;}
.param-row b{font-size:15px;color:var(--ink);}
.param-row span{font-size:14px;color:var(--muted);line-height:1.7;}
.param-row em{font-style:normal;font-size:13.5px;font-weight:700;color:var(--brand-deep);background:var(--brand-soft);border-radius:8px;padding:5px 10px;justify-self:start;}
.param-head{background:#eef6f3;font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:.04em;}
.param-head em{background:transparent;padding:0;color:var(--brand-deep);}

/* ===== Scene ===== */
.scene{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.scene:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bfdcd4;}
.scene-icon{flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand-deep);}
.scene-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.scene h3{font-size:16.5px;margin-bottom:8px;}
.scene p{font-size:14px;line-height:1.78;color:var(--muted);}

/* ===== Channel matrix ===== */
.channel-card{display:block;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:24px;transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;height:100%;}
.channel-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);border-color:rgba(142,224,207,.45);box-shadow:0 18px 36px rgba(0,0,0,.28);}
.channel-card h3{font-size:18px;color:#fff;margin-bottom:9px;}
.channel-card p{font-size:14px;line-height:1.78;color:#b9cfca;margin-bottom:14px;}
.channel-more{font-size:13.5px;font-weight:700;color:#8ee0cf;display:inline-flex;align-items:center;gap:6px;}
.channel-card:hover .channel-more{color:#c3f3e8;}

/* ===== CMS list ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;height:100%;}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfdcd4;}
.post-card h3{font-size:16.5px;line-height:1.5;color:var(--ink);}
.post-card p{font-size:14px;line-height:1.75;color:var(--muted);}
.post-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7d9499;margin-top:auto;padding-top:6px;}
.post-meta span{background:#f1f7f5;border-radius:999px;padding:3px 10px;}
.empty-note{background:#fff;border:1px dashed #c9ddd7;border-radius:var(--radius);padding:34px;text-align:center;color:var(--muted);font-size:14.5px;}

/* ===== FAQ ===== */
.faq-wrap{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item:hover{border-color:#bfdcd4;box-shadow:var(--shadow-md);}
.faq-item summary{list-style:none;cursor:pointer;padding:19px 54px 19px 22px;font-size:15.5px;font-weight:700;color:var(--ink);position:relative;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:20px;font-weight:600;color:var(--brand);line-height:1;transition:transform .2s ease;}
.faq-item[open] summary::after{content:"–";}
.faq-item summary:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:-3px;}
.faq-item p{padding:0 22px 20px;font-size:14.5px;line-height:1.82;color:var(--muted);}

/* ===== CTA band ===== */
.cta-band{position:relative;background-color:#0a1c20;background-size:cover;background-position:center;color:#fff;padding:66px 0;overflow:hidden;}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(8,25,29,.95),rgba(10,60,54,.82));}
.cta-band .container{position:relative;z-index:2;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(21px,2.5vw,30px);line-height:1.36;color:#fff;margin-bottom:10px;}
.cta-inner p{font-size:15px;line-height:1.85;color:#cfe3df;max-width:660px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===== Footer ===== */
.site-footer{background:var(--ink-2);color:#d5e4e1;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.75fr) minmax(0,.75fr);gap:38px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.13);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{font-size:16px;color:#fff;font-weight:800;}
.footer-about{font-size:13.8px;line-height:1.85;color:#a9c3bf;max-width:460px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.8px;color:#a9c3bf;transition:color .2s ease;}
.footer-col a:hover{color:#8ee0cf;}
.footer-col a:focus-visible{outline:2px solid #8ee0cf;outline-offset:3px;border-radius:4px;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:20px 0 26px;font-size:12.8px;color:#8ea8a4;}

/* ===== Responsive ===== */
@media (max-width:1080px){
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .flow{grid-template-columns:repeat(3,minmax(0,1fr));}
 .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:960px){
 .nav-toggle{display:flex;}
 .site-nav{position:absolute;top:calc(100% + 10px);left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-md);padding:12px;display:none;}
 .site-nav.is-open{display:flex;}
 .nav-link{padding:11px 12px;font-size:15px;}
 .nav-actions{flex-direction:column;align-items:stretch;margin:8px 0 0;gap:8px;}
 .nav-actions .btn{width:100%;}
 .hero-grid{grid-template-columns:1fr;gap:30px;}
 .hero{padding:48px 0 54px;}
 .hero-panel img{height:210px;}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media (max-width:768px){
 .section{padding:48px 0;}
 .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
 .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
 .post-grid{grid-template-columns:1fr;}
 .param-row{grid-template-columns:1fr;gap:8px;padding:16px 18px;}
 .param-head{display:none;}
 .cta-inner{flex-direction:column;align-items:flex-start;}
 .header-inner{min-height:60px;}
 .brand-text small{display:none;}
}
@media (max-width:520px){
 .container{padding:0 18px;}
 .hero h1{font-size:25px;}
 .hero-actions .btn{width:100%;}
 .flow{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:28px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
 .stat-card b{font-size:25px;}
}

/* roulang page: category2 */
:root{
 --ink:#0c1d22;
 --ink-2:#15323a;
 --paper:#f4f8f6;
 --surface:#ffffff;
 --muted:#5d777d;
 --line:#dde8e5;
 --brand:#126f63;
 --brand-deep:#0a4c44;
 --brand-soft:#e1f2ee;
 --copper:#c98b4b;
 --radius:14px;
 --shadow-sm:0 2px 10px rgba(12,29,34,.06);
 --shadow-md:0 14px 32px rgba(12,29,34,.11);
 --shadow-lg:0 26px 58px rgba(12,29,34,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
.site-body{
 margin:0;
 background:var(--paper);
 color:var(--ink);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button{font-family:inherit;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{margin:0;font-weight:800;letter-spacing:-.01em;}
.site-body p{margin:0;}
.site-body ul,.site-body ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(12,29,34,.09);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:64px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(150deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;box-shadow:0 6px 14px rgba(18,111,99,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:15.5px;font-weight:800;color:var(--ink);}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em;font-weight:500;}
.site-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{padding:8px 13px;border-radius:8px;font-size:14.5px;font-weight:500;color:#3a5359;transition:background .2s ease,color .2s ease;white-space:nowrap;}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;}
.nav-link:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:2px;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;margin-left:auto;color:var(--ink);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:11px 20px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;min-height:42px;white-space:nowrap;}
.btn:focus-visible{outline:3px solid rgba(18,111,99,.4);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(18,111,99,.24);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(18,111,99,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#cfe2dd;}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-sm{padding:8px 15px;font-size:13.5px;min-height:38px;}
.btn-block{width:100%;}

/* ===== Hero ===== */
.hero{position:relative;color:#fff;background-color:#0a1c20;background-size:cover;background-position:center;padding:64px 0 72px;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(112deg,rgba(8,25,29,.96) 0%,rgba(9,32,36,.88) 48%,rgba(9,32,36,.62) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:46px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:#a6ded2;background:rgba(255,255,255,.08);border:1px solid rgba(166,222,210,.34);padding:6px 14px;border-radius:999px;}
.hero h1{font-size:clamp(27px,3.3vw,42px);line-height:1.28;margin:18px 0 18px;color:#fff;}
.hero-lead{font-size:15.5px;line-height:1.88;color:#cfe3df;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 20px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
.tag{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dcf0eb;}
.hero-panel{background:rgba(255,255,255,.075);border:1px solid rgba(166,222,210,.28);border-radius:18px;padding:24px 24px 20px;backdrop-filter:blur(6px);box-shadow:0 24px 50px rgba(0,0,0,.24);}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
.panel-head h2{font-size:15.5px;color:#fff;font-weight:700;}
.panel-head span{font-size:12px;color:#9fd6c9;letter-spacing:.05em;}
.meter{margin-top:15px;}
.meter-top{display:flex;align-items:baseline;justify-content:space-between;font-size:13px;color:#d7e9e5;margin-bottom:7px;}
.meter-top b{color:#fff;font-size:14px;font-weight:700;}
.meter-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;}
.meter-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#3fc3ac,#8ee0cf);}
.panel-note{margin-top:18px;padding-top:14px;border-top:1px dashed rgba(166,222,210,.28);font-size:12.5px;line-height:1.7;color:#bcd9d3;}

/* ===== Sections ===== */
.section{padding:64px 0;}
.section-white{background:#fff;}
.section-tint{background:#edf4f1;}
.section-dark{background:var(--ink);color:#e6f0ee;}
.section-head{max-width:800px;margin-bottom:34px;}
.section-kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand);background:var(--brand-soft);padding:4px 11px;border-radius:6px;margin-bottom:12px;}
.section-dark .section-kicker{color:#8ee0cf;background:rgba(142,224,207,.14);}
.section-head h2{font-size:clamp(21px,2.4vw,30px);line-height:1.36;margin-bottom:12px;color:var(--ink);}
.section-dark .section-head h2{color:#fff;}
.section-head p{font-size:15px;line-height:1.85;color:var(--muted);}
.section-dark .section-head p{color:#b9cfca;}

/* ===== Grids ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}

/* ===== Cards ===== */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9d8d1;}
.card-icon{width:42px;height:42px;border-radius:11px;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-size:15px;font-weight:800;margin-bottom:14px;}
.card h3{font-size:16.5px;line-height:1.5;margin-bottom:9px;color:var(--ink);}
.card p{font-size:14.5px;line-height:1.8;color:var(--muted);}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{font-size:12px;padding:4px 10px;border-radius:999px;background:#f1f7f5;border:1px solid var(--line);color:#456a63;}

.card-media{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;}
.card-media:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9d8d1;}
.card-media figure{margin:0;position:relative;aspect-ratio:16/10;overflow:hidden;background:#dfe9e6;}
.card-media figure img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card-media:hover figure img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;}
.card-body h3{font-size:16.5px;line-height:1.52;margin-bottom:9px;}
.card-body p{font-size:14.5px;line-height:1.8;color:var(--muted);}
.card-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px;}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9d8d1;}
.step-no{counter-increment:step;position:absolute;top:-14px;left:22px;width:34px;height:34px;border-radius:11px;background:linear-gradient(150deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px;box-shadow:0 8px 16px rgba(18,111,99,.26);}
.step-no::before{content:"0" counter(step);}
.step h3{font-size:16px;margin:10px 0 8px;}
.step p{font-size:14px;line-height:1.78;color:var(--muted);}

/* ===== Stats ===== */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{background:rgba(255,255,255,.05);border:1px solid rgba(166,222,210,.2);border-radius:var(--radius);padding:24px 22px;transition:background .2s ease,border-color .2s ease,transform .2s ease;}
.stat:hover{background:rgba(255,255,255,.09);border-color:rgba(166,222,210,.42);transform:translateY(-3px);}
.stat b{display:block;font-size:30px;line-height:1.1;color:#8ee0cf;font-weight:800;letter-spacing:-.02em;}
.stat span{display:block;margin-top:9px;font-size:13.5px;color:#c2d8d3;line-height:1.65;}

/* ===== Quotes ===== */
.quote{background:#fff;border:1px solid var(--line);border-left:4px solid var(--copper);border-radius:12px;padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;}
.quote:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.quote p{font-size:14.5px;line-height:1.85;color:#334c52;}
.quote footer{margin-top:14px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-weight:800;font-size:13px;}

/* ===== Posts ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{display:flex;flex-direction:column;gap:9px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9d8d1;}
.post-card:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:2px;}
.post-cat{align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.05em;color:var(--brand-deep);background:var(--brand-soft);padding:3px 10px;border-radius:999px;}
.post-card h3{font-size:16px;line-height:1.55;color:var(--ink);}
.post-card p{font-size:14px;line-height:1.78;color:var(--muted);}
.post-date{font-size:12.5px;color:#7d949a;margin-top:auto;padding-top:6px;}
.empty-note{font-size:14.5px;color:var(--muted);background:#f1f7f5;border:1px dashed var(--line);border-radius:12px;padding:22px;}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item[open]{border-color:#b9d8d1;box-shadow:var(--shadow-md);}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-size:15.5px;font-weight:700;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:14px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";flex:0 0 24px;height:24px;border-radius:8px;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform .2s ease;}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:-3px;}
.faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--muted);}

/* ===== CTA ===== */
.cta-band{position:relative;background-color:#0a1c20;background-size:cover;background-position:center;border-radius:18px;overflow:hidden;padding:46px 42px;color:#fff;}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(8,25,29,.95),rgba(10,76,68,.86));}
.cta-band > *{position:relative;z-index:2;}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:32px;align-items:center;}
.cta-inner h2{font-size:clamp(20px,2.3vw,27px);line-height:1.4;margin-bottom:12px;color:#fff;}
.cta-inner p{font-size:14.8px;line-height:1.85;color:#cfe3df;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ===== Footer ===== */
.site-footer{background:#0a1c20;color:#c3d5d2;border-top:1px solid rgba(255,255,255,.08);padding:52px 0 22px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr);gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{font-size:15.5px;color:#fff;}
.footer-about{font-size:13.8px;line-height:1.85;color:#9fb8b4;max-width:440px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:13.8px;color:#9fb8b4;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:#8ee0cf;padding-left:4px;}
.footer-col a:focus-visible{outline:2px solid rgba(142,224,207,.6);outline-offset:3px;border-radius:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:12.8px;color:#8aa3a0;}

/* ===== Responsive ===== */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:34px;}
 .grid-4,.steps,.stats{grid-template-columns:repeat(2,minmax(0,1fr));}
 .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .cta-inner{grid-template-columns:1fr;gap:24px;}
 .cta-actions{justify-content:flex-start;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
 .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media (max-width:860px){
 .nav-toggle{display:flex;}
 .site-nav{position:absolute;top:calc(100% + 1px);left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 32px rgba(12,29,34,.14);flex-direction:column;align-items:stretch;gap:4px;padding:14px 18px 18px;margin-left:0;display:none;}
 .site-nav.is-open{display:flex;}
 .nav-link{padding:12px 14px;font-size:15px;}
 .nav-actions{flex-direction:column;align-items:stretch;gap:10px;margin:10px 0 0;}
 .nav-actions .btn{width:100%;}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
 .section{padding:48px 0;}
 .hero{padding:48px 0 56px;}
 .grid-2,.grid-3,.grid-4,.steps,.stats,.post-grid{grid-template-columns:1fr;}
 .card,.card-body,.step{padding:20px;}
 .cta-band{padding:34px 24px;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .hero-panel{padding:20px;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .hero h1{font-size:26px;}
 .hero-lead{font-size:14.6px;}
 .hero-actions .btn{width:100%;}
 .brand-text b{font-size:14px;}
 .brand-text small{font-size:10px;}
 .section-head h2{font-size:20.5px;}
 .stat b{font-size:26px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
 --ink:#0c1d22;
 --ink-2:#15323a;
 --paper:#f4f8f6;
 --surface:#ffffff;
 --muted:#5d777d;
 --line:#dde8e5;
 --brand:#126f63;
 --brand-deep:#0a4c44;
 --brand-soft:#e1f2ee;
 --copper:#c98b4b;
 --radius:14px;
 --shadow-sm:0 2px 10px rgba(12,29,34,.06);
 --shadow-md:0 14px 32px rgba(12,29,34,.11);
 --shadow-lg:0 26px 58px rgba(12,29,34,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
.site-body{
 margin:0;
 background:var(--paper);
 color:var(--ink);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button,.site-body input{font-family:inherit;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{margin:0;font-weight:800;letter-spacing:-.01em;}
.site-body p{margin:0;}
.site-body ul,.site-body ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(12,29,34,.09);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:64px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(150deg,var(--brand),var(--brand-deep));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;box-shadow:0 6px 14px rgba(18,111,99,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:15.5px;font-weight:800;color:var(--ink);}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em;font-weight:500;}
.site-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{padding:8px 13px;border-radius:8px;font-size:14.5px;font-weight:500;color:#3a5359;transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;}
.nav-link:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:2px;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;margin-left:auto;color:var(--ink);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:11px 20px;font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;min-height:42px;white-space:nowrap;}
.btn:focus-visible{outline:3px solid rgba(18,111,99,.4);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(18,111,99,.24);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(18,111,99,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#cfe2dd;}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-sm{padding:8px 15px;font-size:13.5px;min-height:38px;}
.btn-block{width:100%;}
/* ===== Hero ===== */
.hero{position:relative;color:#fff;background-color:#0a1c20;background-size:cover;background-position:center;padding:66px 0 70px;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,25,29,.96) 0%,rgba(9,32,36,.9) 48%,rgba(9,32,36,.62) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:46px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:#a6ded2;background:rgba(255,255,255,.08);border:1px solid rgba(166,222,210,.34);padding:6px 14px;border-radius:999px;}
.hero h1{font-size:clamp(26px,3.2vw,42px);line-height:1.26;margin:18px 0 18px;color:#fff;}
.hero-lead{font-size:15.5px;line-height:1.88;color:#cfe3df;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 20px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
.tag{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dcf0eb;}
.hero-panel{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:24px;backdrop-filter:blur(8px);box-shadow:0 24px 50px rgba(0,0,0,.28);}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
.panel-label{font-size:12.5px;letter-spacing:.08em;color:#9ed6c9;font-weight:600;}
.hot-badge{font-size:12px;font-weight:700;color:#0c1d22;background:#7fe0cd;border-radius:999px;padding:3px 10px;white-space:nowrap;}
.panel-version{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.01em;margin:2px 0 4px;}
.panel-sub{font-size:13px;color:#bcd8d2;margin-bottom:16px;}
.panel-list{display:flex;flex-direction:column;gap:10px;border-top:1px solid rgba(255,255,255,.14);padding-top:16px;}
.panel-list li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:#d7e9e5;}
.panel-list li b{color:#fff;font-weight:700;}
.panel-foot{margin-top:16px;font-size:12.5px;color:#9fbdb8;}
/* ===== Sections ===== */
.section{padding:62px 0;}
.section-white{background:#fff;}
.section-tint{background:#edf4f1;}
.section-dark{background:var(--ink);color:#e6f0ee;}
.section-head{max-width:780px;margin-bottom:32px;}
.section-kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand);background:var(--brand-soft);padding:4px 11px;border-radius:6px;margin-bottom:12px;}
.section-dark .section-kicker{color:#8ee0cf;background:rgba(142,224,207,.14);}
.section-head h2{font-size:clamp(21px,2.4vw,30px);line-height:1.36;margin-bottom:12px;color:var(--ink);}
.section-dark .section-head h2{color:#fff;}
.section-head p{font-size:15px;line-height:1.85;color:var(--muted);}
.section-dark .section-head p{color:#b9cfca;}
.section-divider{height:1px;background:var(--line);margin:0;}
/* ===== Grids ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
/* ===== Cards ===== */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;height:100%;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfd9d3;}
.card h3{font-size:17px;line-height:1.5;margin-bottom:8px;color:var(--ink);}
.card p{font-size:14px;line-height:1.8;color:var(--muted);}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{font-size:12px;font-weight:600;color:var(--brand-deep);background:var(--brand-soft);border-radius:999px;padding:4px 11px;}
.chip-copper{color:#8a5a24;background:#f7ecdd;}
.card-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;font-weight:800;font-size:16px;margin-bottom:14px;}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.stat-num{font-size:27px;font-weight:800;color:var(--brand-deep);line-height:1.2;}
.stat-num span{font-size:14px;font-weight:700;color:var(--muted);margin-left:4px;}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7;}
/* ===== Split ===== */
.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:38px;align-items:center;}
.img-frame{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line);position:relative;}
.img-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.update-list{display:flex;flex-direction:column;gap:16px;}
.update-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.update-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bfd9d3;}
.update-idx{flex:0 0 32px;height:32px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px;}
.update-item h3{font-size:15.5px;margin-bottom:5px;}
.update-item p{font-size:13.8px;color:var(--muted);line-height:1.75;}
/* ===== Steps / Timeline ===== */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;counter-reset:step;}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 16px;box-shadow:var(--shadow-sm);position:relative;}
.step::before{counter-increment:step;content:"0" counter(step);display:block;font-size:12.5px;font-weight:800;color:var(--copper);letter-spacing:.08em;margin-bottom:8px;}
.step h3{font-size:14.5px;line-height:1.5;margin-bottom:6px;}
.step p{font-size:13px;color:var(--muted);line-height:1.7;}
.timeline{border-left:2px solid #cfe2dd;padding-left:22px;display:flex;flex-direction:column;gap:22px;}
.tl-item{position:relative;}
.tl-item::before{content:"";position:absolute;left:-30px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--brand);border:3px solid #edf4f1;}
.tl-date{font-size:12.5px;font-weight:800;color:var(--copper);letter-spacing:.06em;}
.tl-item h3{font-size:15.5px;margin:4px 0 5px;}
.tl-item p{font-size:13.8px;color:var(--muted);line-height:1.75;}
.panel-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);}
.panel-card h3{font-size:17px;margin-bottom:14px;}
.compare-row{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.compare-row:last-child{border-bottom:none;}
.compare-row span{color:var(--muted);}
.compare-row b{color:var(--ink);font-weight:700;text-align:right;}
/* ===== Channel ===== */
.channel-card{display:block;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:22px;transition:transform .2s ease,background .2s ease,border-color .2s ease;height:100%;}
.channel-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.12);border-color:rgba(142,224,207,.55);}
.channel-card h3{font-size:17px;color:#fff;margin-bottom:8px;}
.channel-card p{font-size:13.8px;color:#b9cfca;line-height:1.75;}
.channel-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;font-weight:700;color:#8ee0cf;}
/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item[open]{border-color:#bfd9d3;box-shadow:var(--shadow-md);}
.faq-item summary{list-style:none;cursor:pointer;padding:17px 20px;font-size:15.5px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;font-weight:700;color:var(--brand);line-height:1;flex-shrink:0;}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:focus-visible{outline:3px solid rgba(18,111,99,.35);outline-offset:-3px;}
.faq-body{padding:0 20px 18px;font-size:14px;line-height:1.85;color:var(--muted);}
/* ===== CTA ===== */
.cta-band{background:linear-gradient(135deg,var(--brand-deep),#0a2a2a 70%);border-radius:18px;padding:40px;color:#fff;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:30px;align-items:center;box-shadow:var(--shadow-lg);}
.cta-band h2{font-size:clamp(20px,2.3vw,28px);line-height:1.4;margin-bottom:12px;}
.cta-band p{font-size:14.5px;line-height:1.85;color:#c6ded9;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.btn-copper{background:var(--copper);color:#231507;box-shadow:0 8px 18px rgba(201,139,75,.3);}
.btn-copper:hover{background:#b87a3b;transform:translateY(-2px);}
/* ===== Footer ===== */
.site-footer{background:#0a1c20;color:#b9cfca;padding:52px 0 26px;border-top:3px solid var(--brand);}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(0,1fr) minmax(0,1fr);gap:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.footer-brand b{color:#fff;font-size:16px;font-weight:800;}
.footer-about{font-size:13.5px;line-height:1.85;color:#93adaa;max-width:420px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:#a7c2be;transition:color .2s ease;}
.footer-col a:hover{color:#8ee0cf;}
.footer-col a:focus-visible{outline:2px solid #8ee0cf;outline-offset:3px;border-radius:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#7f9a96;}
/* ===== Responsive ===== */
@media (max-width:1023px){
 .nav-toggle{display:inline-flex;}
 .site-nav{position:absolute;top:64px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:12px 16px 18px;box-shadow:var(--shadow-md);gap:4px;}
 .site-nav.is-open{display:flex;}
 .nav-link{padding:11px 12px;font-size:15px;}
 .nav-actions{margin:10px 0 0;flex-direction:column;align-items:stretch;}
 .nav-actions .btn{width:100%;}
 .hero-grid{grid-template-columns:1fr;gap:30px;}
 .split{grid-template-columns:1fr;gap:28px;}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
 .cta-band{grid-template-columns:1fr;padding:32px;}
 .cta-actions{justify-content:flex-start;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
 .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media (max-width:767px){
 .container{padding:0 18px;}
 .section{padding:46px 0;}
 .hero{padding:48px 0 52px;}
 .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
 .steps{grid-template-columns:1fr;}
 .hero-lead{font-size:14.8px;}
 .cta-band{padding:26px;}
 .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
 .brand-text b{font-size:14px;}
 .brand-text small{font-size:10px;}
 .hero h1{font-size:24px;}
 .card,.stat-card,.panel-card,.update-item{padding:16px;}
 .btn{padding:10px 16px;font-size:14px;}
 .hero-actions .btn{width:100%;}
}